粘带取样法调查小型蚧类效果好小型蚧类消长调查的取样方法，生产上常用定株定枝定长法，但虫口密度大时，这种方法费时、费力，且误差大。近２年笔者在做桑白蚧田间调查时，发现采用粘带法操作方便，准确率高，效果很好。作法是将透明胶带粘绕于被调查的有虫枝１周，并用... Adhesive tape sampling method to investigate the effect of small scale class scale sample scale survey of the sampling method commonly used in the production of fixed-branch fixed-length method, but when the population density, this method is time-consuming and laborious, and the error is large. Nearly 2 years I was making mulberry white scale field survey found that the use of sticky tape method easy operation, high accuracy, the effect is very good. The practice is to stick the scotch tape around the worms that were investigated for 1 week and use ...